How is the shape of sampling distribution for chi square different from that of the Z and the t distributions?
A) Chi square has a mode at the left and at the right side of its distribution.
B) Chi square is negatively skewed.
C) Chi square is positively skewed.
D) They are all actually identical in their general shape.

Question

Quizplus · Accepted Answer

The chi-square distribution is positively skewed, especially for small degrees of freedom, unlike the Z and t distributions which are symmetric.

How Is the Shape of Sampling Distribution for Chi Square